java - Delimiter to use for parsing negative numbers -

-

मैं integers (सकारात्मक और नकारात्मक) को खोजने के लिए split का उपयोग कर एक स्ट्रिंग पार्स करना चाहता हूं। उदाहरण के लिए, dfgs # & amp; -6d5।, B-dgj895-9-8 सरणी में बदल जाएगा [- 6, 5, 895, -9, -8] ।

अंग्रेजी में, regex होगा:

  1. अक्षर जो अंक नहीं हैं
  2. वर्ण जो अंकों के बाद डैश नहीं हैं
  3. ज़ीरो-चौथाई वर्ण जो एक डैश द्वारा पीछा किए जाते हैं, जो एक अंक के बाद होता है

ये अलग घटक हैं, लेकिन मुझे नहीं पता कि उन्हें कैसे एक साथ जुड़ना है:

  1. \ D +
  2. [^ - (? = [0- 9])]
  3. (? = - [0- 9] +)

< P> split स्पष्ट रूप से आप चाहते हैं परिणाम प्राप्त करने के लिए उपयुक्त उपकरण नहीं है हालांकि इसे split के साथ करने के लिए आप इस पद्धति का उपयोग कर सकते हैं: 

  स्ट्रिंग [] nbs = text.split ("(? & Gt; [^ - 0-9] (?! [0-9]) - | +) + | (= - [0-9]) ");

लेकिन आपको खाली परिणाम निकालने की आवश्यकता है (जो शुरुआत के समय या अंत में, स्ट्रिंग के आधार पर हो सकता है)।


Comments

Post a Comment

Popular posts from this blog

java - org.apache.http.ProtocolException: Target host is not specified -

-
I have written a simple httprequest / response code and I am getting this error below: I used to type in my classpath httpclient, httpcore, common -Codecs and general logging. I am very new to Java and I do not know what's going on here. Please help me. code: import org.apache.http.client.HttpClient; Import org.apache.http.client.methods.HttpGet; Import org.apache.http.HttpResponse; Import org.apache.http.impl.client.HttpClientBuilder; Import org.apache.http.Header; Import org.apache.http.HttpHeaders; Public class UnshorteningUrl {public static zero main (string [] args throws exception {HttpGet request = zero; HTTP Client Client = HTTP ClientBuilder.credit (). Build (); Try {Request = New HTTP Gate ("trib.me/1lBFzSi"); HttpResponse httpResponse = client.execute (request); Header [] header = httpResponse.getHeaders (HttpHeaders.LOCATION); // Preconditions.checkState (headers.length == 1); String new url = header [0] .getValue (); System.out.println ("new url...
Read more

java - Gradle dependencies: compile project by relative path -

-
Is it possible to specify a dependency on another gradeal project in the granular (in android studios) outside the current project limits? For example, with a relative path like this: dependence {collection project ('../../ stdlib / dagger'}} MyApp (path / user / foo / workspace / mypad) The app (Path / User / Foo / Workspace / MyPass / App) And I have an Android Library Project with 3 subdomules: stdlib (path is / user / foo / Utilities (Path / User / Foo / Workspace / Stadlib / Utilis) http (Path / User / Foo / Workspace / Stadlib / HT) / Li> What I have to do is compile the Dagger, Util, http module in the MyApp project. The Stidelib Library module under heavy development And MyApp will grow in the form of Growth, so I do not want to push them into a Mewen repository. I am a little change. is likely to add another Gredle projects in some way? I will push the study library into the Maven repository after the source is in search of a temp...
Read more

ruby on rails - Object doesn't support #inspect when used with .include -

-
So I have participated in a glitch error that I do not even know how to debug. I am very new to the railing, so it has kicked my ass well when I use the .includes (school) seen by the student, it gives a blue box error, But when I look at any other model and .includes (school) , the school works just fine. class student & lt; ActiveRecord :: Base has has_many: relationships, foreign_key: "liker_id", dependent :: has_many: matches, foreign_key: "student_1_id", dependent :: deleted belong_to: school belong_to: conference belong_to: would_you_rather belong_to: home city belong_to: year is_to: Major and class school & lt; on the console activatecord :: Affiliate for the base: conference includes: respondent, class: "school", foreign_key: "rival_id" (e.g. For: School) Select SQL generated Select "School". * "School" from "school" "ID" IN (1) error message back NoMethodError: u...
Read more